Athletes and Vitamin D3 deficiency

Athletes and Vitamin D3 deficiency By Joachim Bartoll, August 2015, for Classic Muscle Newsletter, issue 12 As some of you may know, I developed a vitamin D3 and vitamin K2 combined supplement for Body Science (MM Sports) back in 2012/2013. I came up with this formula because a high intake of vitamin D3 will increase the concentration of calcium in your blood stream. This happens because your body will up-regulate the synthesis and repair …

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